KR20180090915A - Continuous pyrolysis apparatus of cartridge type and method of operation thereof - Google Patents

Abstract

The present invention relates to a cartridge type continuous pyrolysis apparatus and a method for operating the same. More particularly, the present invention relates to a cartridge type continuous pyrolysis apparatus comprising: an inlet unit through which organic wastes are introduced by a feed pump; a reactor comprising a zigzag shaped body having one end connected to the inlet unit and pyrolyzing the organic wastes introduced into the interior, a body in which horizontal tubes and vertical tubes being alternately connected, a helical screw provided in each of the horizontal tubes, and a motor for horizontally conveying the organic wastes by driving the helical screw; and a discharge unit connected to the other end of the reactor to discharge the pyrolyzed reaction product. The pyrolysis efficiency of the organic wastes can be enhanced by continuously performing the pyrolysis process of the organic wastes.

Description

Continuous pyrolysis apparatus of cartridge type and method of operation < RTI ID = 0.0 >

The present invention relates to a continuous thermal cracking apparatus and its operating method. More particularly, the present invention relates to an apparatus for increasing the pyrolysis efficiency by continuously decomposing organic sludge, which can utilize a small space by connecting the reactor to the reactor, adjust the residence time required for the pyrolysis reaction, A continuous thermal cracking apparatus capable of improving the efficiency of low-temperature pyrolysis by reducing the pressure loss through parallel steam control, maintaining the pressure inside the reactor at a constant level and maintaining the temperature and pressure constant through the controller, and How it works.

At present, the amount of organic sludge generated is continuously increasing, and sludge treatment is an important part of the environmental problem.

Typical methods of treating organic sludge include landfilling and marine dumping, but direct landfilling is prohibited without treatment of sludge, and marine dumping is legally prohibited through the 2009 London Convention. Therefore, treatment of the sludge must be preceded.

In order to treat the organic sludge, it is necessary to reduce the volume by reducing the amount of the organic sludge in order to secure the landfill space.

Drying, which is a representative method of reducing sludge, consumes a large amount of energy and causes problems in processing due to odor and viscosity. Therefore, there is a need for an environmentally friendly treatment method capable of treating a large amount of sludge. One of the technologies for reducing sludge is hydrothermal decomposition. The hydrothermal decomposition method is a method of decomposing sludge at low temperatures using hydrothermal heat, and has been commercialized in some fields mainly in Europe.

Hydrothermal degradation is a thermal hydrolysis reaction that causes chemical reaction by the action of hydrogen ions and hydroxide ions in water at a temperature of 180-250 ° C to decompose the cell wall, protein and other polymeric substances. As a general example, at a temperature of about 180-250 ° C, hydrolysis occurs in which a hydrogen bond and a hydroxyl ion bond to a covalent bond of a protein, which is an insoluble polymer organic substance, resulting in thermal hydrolysis, resulting in decomposition of the protein into a water- It melts.

Hydrothermal carbonization takes place under the same conditions as hydrothermal decomposition, and the reactants are carbonized to produce hydrocarbons which are solid fuel. The hydrocarbons produced by hydrothermal carbonization have low equilibrium water content and are low in possibility of decay during storage and can be manufactured in the form of pellets which can be used in gasification furnaces or coal power plants because of their good crushability.

Various methods have been developed to treat and recycle organic sludge using the above pyrolysis principle. However, the existing hydrothermal decomposition apparatus has a problem that efficiency and economical efficiency of treatment are degraded by treating pyrolysis once in a closed container. In order to solve this problem, a continuous pyrolysis apparatus has been developed through various methods, but it has not been practically used.

Therefore, it has been required to develop a device and a method capable of reducing the energy loss occurring in the one-time processing system and improving the pyrolysis efficiency by converting the one-time processing system, which is a problem of the conventional low-temperature pyrolysis system, to the continuous processing system.

Korean Patent No. 1337493 Japanese Patent No. 3359307 Korea Patent Publication No. 2010-0008961 Japanese Patent No. 3176503

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is therefore one of the objects of the present invention to provide a method for continuously pyrolyzing organic sludge, - maintaining the organic sludge as a two-step process, thereby improving the pyrolysis efficiency by continuously performing the pyrolysis process of the organic sludge.

According to an embodiment of the present invention, there is provided an apparatus for increasing the thermal decomposition efficiency by continuously decomposing organic sludge, comprising: a reactor connected to the reactor by a cartridge to utilize a small space; a residence time necessary for a pyrolysis reaction can be adjusted; Dual valves and parallel steam control and steam circulation reduce pressure loss, ensure that the pressure inside the reactor is always constant, and keep the temperature and pressure constant through the controller to improve the efficiency of low temperature pyrolysis And a method of operating the same.

According to an embodiment of the present invention, the reaction is continuously performed, the organic sludge in the reactor is horizontally moved through the spiral screw, the reaction time of the organic sludge is controlled by installing the reactor in several layers, , The use of the site can be reduced by a vertical layered installation rather than a horizontally continuous installation and all the connected reactors are sealed through a seal for the space between the rotating shaft and the reactor, It is possible to control the temperature by the control unit and to prevent the pressure loss caused by the inflow and outflow of the organic waste through the steam regulator, and by using the steam generated in the reactor during the introduction of the organic waste, Preheating, and preheating to shorten the decomposition time, and the entire reactor is maintained at a constant pressure The use of controlling the parallel pressure regulator so as to have the steam and to provide a cartridge type continuous thermal decomposition apparatus and a method of operation for producing hot water using the heat of the steam which remains after the inner pressure adjusting it is an object.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. It can be understood.

An object of the present invention is to provide a continuous pyrolysis apparatus comprising: an inlet for introducing organic waste by a feed pump; A zigzag shaped body having one end connected to the inlet and thermally decomposing organic wastes introduced into the interior, the horizontal tube and the vertical tube being alternately connected, a helical screw provided in each of the horizontal tubes, A reactor having a motor for horizontally conveying the organic waste; And a discharge unit connected to the other end of the reactor and discharging pyrolyzed reaction product.

The inlet portion may include a first inlet valve that opens and closes the inlet portion, a second inlet valve that is spaced a specific distance from the first inlet valve to open and close the inlet portion, and a second inlet valve, And a chamber which is an interspace.

The discharge section includes a first discharge valve that opens and closes the discharge section, a second discharge valve that opens and closes the discharge section at a specific interval from the first discharge valve, And a sealed space which is an interspace.

Further, it may further comprise an outer frame having the built-in reactor and having a warm-keeping function.

The sealing unit may further include a rotation shaft of the spiral screw and a hermetic unit for hermetically closing the reactor to seal the reactor.

Further, the apparatus may further include a heating device for heating the reactor.

The apparatus may further include a reactor steam control pipe connected to the reactor for discharging the steam generated in the reactor, and a steam controller for controlling a flow rate of steam discharged from the steam control pipe.

A pressure sensor for measuring the internal pressure of the reactor in real time; And a controller for controlling the steam controller based on the value measured by the pressure sensor to maintain the internal pressure of the reactor within a predetermined range.

The controller may further include a temperature sensor for measuring the temperature of the reactor in real time, and the controller controls the heating device based on the value measured by the temperature sensor to maintain the temperature of the reactor in a predetermined range .

The control unit may control the motor to control the rotational speed of the spiral screw to control the moving speed and reaction speed of the organic waste.

A first pressure gauge for measuring a pressure in the chamber; And a chest steam control pipe connecting the chest and the steam regulator to introduce steam into the chest, wherein the controller opens the first inlet valve to embed the organic waste into the chest, Closing the inlet valve, supplying steam into the chamber, raising the internal pressure to a level similar to the internal pressure of the reactor, and opening the second inlet valve to introduce the organic waste into the reactor.

A second pressure gauge for measuring a pressure in the closed space; And a closed space steam control pipe connected to the closed space and the steam control unit to discharge steam in the closed space, wherein the control unit opens the first discharge valve to house reactants in the closed space, Closing the second discharge valve, discharging the steam in the closed space, lowering the internal pressure to the vicinity of the atmospheric pressure, and opening the second discharge valve to inject the reactant into the storage section.

The system may further include an internal circulation system for controlling the internal pressure of the steam regulator through at least one of the reaction tank, the sealed space, and the chamber, .

A steam discharge pipe provided at the other side of the steam regulator to discharge steam; And a heat exchanger for absorbing heat of the steam discharged from the steam discharge pipe to produce hot water.

As yet another category, an object of the present invention is to provide a method and a system for treating organic wastes, comprising: introducing organic wastes into an inlet by driving a feed pump; The organic waste flows into the reactor once connected to the inlet and the helical screw provided in each of the horizontal tubes of the zigzag body is rotationally driven by the motor to pyrolyze the organic waste while horizontally transporting the organic waste; And discharging the pyrolyzed reaction product through a discharge unit connected to the other end of the reactor to a storage unit. In the pyrolysis step, the body is in a zigzag shape in which a horizontal pipe and a vertical pipe are alternately connected to each other, The horizontal pipe is horizontally moved through a helical screw of a horizontal pipe at the upper end and is then moved to a horizontal pipe at a lower end by a vertical pipe to be horizontally moved through a helical screw provided at the lower horizontal pipe, The steam generated in the reactor is discharged by the reactor steam control pipe connected to the reactor, and the steam discharged from the steam control pipe by the steam regulator And the reactor internal pressure is regulated by regulating the flow rate and re-introducing the syringe into the reactor A cartridge type continuous pyrolysis apparatus may be achieved as a method works.

In the pyrolyzing step, a pressure sensor measures the internal pressure of the reactor in real time; And controlling the steam controller based on the value measured by the pressure sensor to maintain the internal pressure of the reactor at a predetermined range; And further comprising

Further, in the pyrolyzing step, the temperature sensor measures the temperature of the reactor in real time; And controlling the heating unit based on a value measured by the temperature sensor to maintain the temperature of the reactor in a predetermined range.

The control unit controls the motor to control the rotation speed of the spiral screw to control the movement speed and the reaction speed of the organic waste in the pyrolysis step.

In addition, in the introduction step, the controller opens the first inlet valve to embed the organic waste into the chamber, closes the first inlet valve, and, based on the measured value in the first pressure gauge, The steam is supplied into the chamber to raise the internal pressure to a level similar to the internal pressure of the reactor, the second inlet valve is opened to introduce the organic waste into the reactor, and the second inlet valve is closed, And the waste is introduced into the reactor.

In the discharging step, the controller opens the first discharge valve to house the reactant in the closed space, and then closes the second discharge valve. Then, based on the measured value in the second pressure gauge, And repeating the process of discharging the steam in the closed space to lower the internal pressure to the vicinity of atmospheric pressure and opening the second discharge valve to inject the reactant into the storage section.

According to one embodiment of the present invention, in order to continuously pyrolyze the organic sludge, the three steps of heating-maintaining-cooling of the conventional batch reactor are simplified to a two-step process of heating-maintaining to continuously perform the pyrolysis process of the organic sludge Thereby improving the pyrolysis efficiency.

According to an embodiment of the present invention, there is provided an apparatus for increasing the thermal decomposition efficiency by continuously decomposing organic sludge, comprising: a reactor connected to the reactor by a cartridge to utilize a small space; a residence time necessary for a pyrolysis reaction can be adjusted; Dual valves and parallel steam control and steam circulation reduce pressure loss, ensure that the pressure inside the reactor is always constant, and keep the temperature and pressure constant through the controller to improve the efficiency of low temperature pyrolysis .

According to an embodiment of the present invention, the reaction is continuously performed, the organic sludge in the reactor is horizontally moved through the spiral screw, the reaction time of the organic sludge is controlled by installing the reactor in several layers, , The use of the site can be reduced by a vertical layered installation rather than a horizontally continuous installation and all the connected reactors are sealed through a seal for the space between the rotating shaft and the reactor, It is possible to control the temperature by the control unit and to prevent the pressure loss caused by the inflow and outflow of the organic waste through the steam regulator, and by using the steam generated in the reactor during the introduction of the organic waste, Preheating, and preheating to shorten the decomposition time, and the entire reactor is maintained at a constant pressure To regulate the pressure using a steam regulator to parallel so as to have, and has the effect of producing hot water using the heat of the steam which remains after the inner pressure regulation.

It should be understood, however, that the effects obtained by the present invention are not limited to the above-mentioned effects, and other effects not mentioned may be clearly understood by those skilled in the art to which the present invention belongs It will be possible.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description, serve to further the understanding of the technical idea of the invention, It should not be construed as limited.
FIG. 1 is a block diagram of a continuous cracking device according to an embodiment of the present invention.
FIG. 2 is a schematic view of a continuous thermal cracking apparatus according to an embodiment of the present invention. FIG.
3 is a configuration diagram of a continuous dry thermal decomposition apparatus having a heating apparatus according to an embodiment of the present invention,
FIG. 4 is a flow chart of a method of operating a continuous cracking device according to an embodiment of the present invention,
FIG. 5 is a block diagram illustrating a signal flow of a controller of the continuous thermal decomposition apparatus of the present invention. Referring to FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more readily apparent from the following description of preferred embodiments with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art.

In this specification, when an element is referred to as being on another element, it may be directly formed on another element, or a third element may be interposed therebetween. Also in the figures, the thickness of the components is exaggerated for an effective description of the technical content.

Embodiments described herein will be described with reference to cross-sectional views and / or plan views that are ideal illustrations of the present invention. In the drawings, the thicknesses of the films and regions are exaggerated for an effective description of the technical content. Thus, the shape of the illustrations may be modified by manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention are not limited to the specific forms shown, but also include changes in the shapes that are produced according to the manufacturing process. For example, the area shown at right angles may be rounded or may have a shape with a certain curvature. Thus, the regions illustrated in the figures have attributes, and the shapes of the regions illustrated in the figures are intended to illustrate specific forms of regions of the elements and are not intended to limit the scope of the invention. Although the terms first, second, etc. have been used in various embodiments of the present disclosure to describe various components, these components should not be limited by these terms. These terms have only been used to distinguish one component from another. The embodiments described and exemplified herein also include their complementary embodiments.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms "comprises" and / or "comprising" used in the specification do not exclude the presence or addition of one or more other elements.

In describing the specific embodiments below, various specific details have been set forth in order to explain the invention in greater detail and to assist in understanding it. However, it will be appreciated by those skilled in the art that the present invention may be understood by those skilled in the art without departing from such specific details. In some instances, it should be noted that portions of the invention that are not commonly known in the description of the invention and are not significantly related to the invention do not describe confusing reasons to explain the present invention.

Hereinafter, the structure, function, and operation method of the continuous thermal decomposition apparatus 100 according to an embodiment of the present invention will be described. 1 is a block diagram of a continuous thermal decomposition apparatus 100 according to an embodiment of the present invention.

FIG. 2 is a schematic view of a continuous thermal decomposition apparatus 100 according to an embodiment of the present invention. FIG. 3 is a schematic view of a continuous thermal decomposition apparatus 100 having a heating apparatus 50 according to an embodiment of the present invention. And shows the construction of the pyrolysis apparatus 100. FIG.

4 is a flowchart illustrating a method of operating the continuous thermal decomposition apparatus 100 according to an embodiment of the present invention. FIG. 5 is a flowchart illustrating a method of operating the continuous thermal decomposition apparatus 100 according to an embodiment of the present invention. The control unit 90 of FIG.

1, the continuous thermal decomposition apparatus 100 according to an embodiment of the present invention includes an inlet 10, a thermal decomposition reactor 30, a heat exchanger 120, a processing unit 110, And the like. Organic wastes such as primary sludge, secondary sludge and digested sludge are introduced into the reactor 30 through the inlet 10 and the pyrolysis reactor 30 pyrolyzes organic wastes to remove moisture from the waste, Thereby increasing the carbon fraction of the waste through it. In addition, the steam discharged through pyrolysis may be used to generate hot water through the heat exchanger 120. The reactants discharged from the pyrolysis reactor (30) are transferred to the pellet generating section through the processing section (110) or finally processed.

Hereinafter, the structure and function of the continuous thermal decomposition apparatus 100 according to an embodiment of the present invention will be described in detail. In the continuous thermal decomposition apparatus 100 according to an embodiment of the present invention, the reactor 30 is disposed horizontally rather than horizontally through a cartridge system, thereby reducing site waste and efficiently utilizing the space.

Specifically, as shown in FIG. 2, the continuous thermal cracking apparatus 100 according to an embodiment of the present invention includes an inlet 10 through which organic waste flows into the feed pump 1, A zigzag-shaped body 41 connected to the horizontal pipe and the vertical pipe by thermally decomposing organic wastes introduced into the inner pipe 10 and connected to the vertical pipe 10, a helical screw 42 provided in each of the horizontal pipes, A reactor 30 having a motor 44 for horizontally conveying the organic waste by driving the screw 42 and a discharge unit 70 connected to the other end of the reactor 30 to discharge pyrolytic reactants, As shown in FIG.

An inlet 10 according to an embodiment of the present invention includes a hopper 11 through which organic waste is introduced by a feed pump 1 and a first inlet valve 12 for opening and closing an upper end of the inlet 10 A second inlet valve 14 which is spaced apart from the first inlet valve 12 at a lower side of the specific interval and opens and closes the lower end of the inlet 10 and a first inlet valve 12 and a second inlet valve 14, 14 which is a space between the chambers 13.

The discharge unit 70 according to the embodiment of the present invention includes a first discharge valve 71 for opening and closing the upper end of the discharge unit 70, A second discharge valve 73 for opening and closing the lower end of the discharge portion 70 and a closed space 72 which is a space between the first discharge valve 71 and the second discharge valve 73.

2 and 3, the reactor 30 according to an embodiment of the present invention may include a vertical tube connecting between three horizontal tubes and a horizontal tube. That is, the three horizontal tubes are configured in a cart-wise manner spaced apart from each other in a vertical direction, and each of the horizontal tubes is provided with a helical screw 42 therein. These spiral screws 42 are rotated by the motor 44 with reference to the rotating shaft so that the organic waste introduced through the inlet 10 flows into the upper horizontal pipe After moving horizontally from the left to the right, it falls down to the horizontal side horizontal tube through the vertical tube and is moved from the right side to the left side of the horizontal side tube through the spiral screw 42 of the vertical side horizontal tube, And then it is transported from the left side to the right side of the lower side horizontal pipe through the helical screw 42 of the lower side horizontal pipe, and is thermally decomposed.

The outer frame 20 has a built-in reactor 30 to perform a function of fixing the reactor 30 and a function of keeping the heat applied to the reactor 30 from being released to the outside.

The sealing portion 43 is provided on the side of the contact portion where the helical screw 42 is connected to the reactor body 41 so as to completely seal the inside of the reactor 30.

In addition, as shown in FIG. 3, in the embodiment, the reactor body 41 may be provided with a hot wire on the outer surface thereof, and a heating device 50 for heating the reactor 30 may be included. .

In an embodiment of the present invention, a steam control tube and a steam controller 60 may be included. The steam control pipe includes a reactor steam control pipe 62 connected to the reactor 30 and discharging the steam generated in the reactor 30, a chamber steam control pipe 61 connected to the chamber 13, And a closed space steam control tube 63 connected to the steam generator 72. Also, it can be seen that the reactor steam control tube 62 can be provided in each of the three horizontal tubes, as shown in FIGS.

The chamber steam control pipe 61, the reactor steam control pipe 62 and the closed space steam control pipe 63 are all connected to the steam controller 60. The steam regulator 60 supplies steam to the chamber 13 side in association with the chamber steam regulating pipe 61 so that the internal pressure of the chamber 13 is maintained at 70 to 70 < RTI ID = 0.0 > 80%, and the amount of steam discharged through the reactor steam control pipe 62 is adjusted to maintain the internal pressure of the reactor 30 within the predetermined range. In addition, the squeeze control tube discharges the steam in the closed space 72 through the closed space steam control tube 63 to lower the internal pressure of the closed space 72 to the atmospheric pressure level.

The continuous crack pyrolysis apparatus 100 according to an embodiment of the present invention includes a pressure sensor 46 for measuring the internal pressure of the reactor 30 in real time and a pressure sensor 46 for measuring the temperature of the reactor 30 in real time And a temperature sensor 45.

The control unit 90 controls the heating device 50 based on the measured value of the temperature sensor 45 to adjust the temperature of the reactor 30 to a predetermined range. Although one temperature sensor 45 is shown in FIGS. 2 and 3, a temperature sensor 45 is provided in each of the three horizontal pipes to control the heating device 50 provided in each of the horizontal pipes to control the temperature .

The control unit 90 may control the steam regulator 60 based on the value measured by the pressure sensor 46 to maintain the internal pressure of the reactor 30 in the predetermined range. The pressure sensor 46 may also be provided on each of the three horizontal tubes to adjust the pressure of each of the horizontal tubes based on the internal pressure of each of the horizontal tubes. That is, a reactor steam control pipe 62 is provided between each of the three horizontal pipes and the steam regulator 60 to measure the internal pressure of each of the horizontal pipes by the pressure sensor 46, and, based on the measured pressure value, 60 to regulate the respective internal pressures.

The control unit 90 controls the motor 44 to control the moving speed and the reaction speed of the organic waste by adjusting the rotational speed of the spiral screw 42.

In addition, the first pressure gauge 15 according to an embodiment of the present invention measures the pressure in the chamber 13. Between the chamber 13 and the steam controller 60, a chamber steam control tube 61 is provided to introduce steam into the chamber 13.

The above-mentioned inflow portion 10 is provided with two electric valves. The control unit 90 closes the first inlet valve 12 by opening the first inlet valve 12 to embed the organic waste into the chamber 13 and supplies the steam into the chamber 13 to return the internal pressure to the reactor 30 to 70 to 80% of the internal pressure of the reactor 30, and the second inlet valve 14 is opened to inject the organic waste into the reactor 30. [

That is, when the organic waste flows into the first inlet valve 12 in the state where the first inlet valve 12 is locked and the organic waste accumulates on the first inlet valve 12, the first inlet valve 12 is opened and the second inlet valve 14 Drop the waste. And then immediately locks the first inlet valve 12 and causes the waste to build up again. Steam is passed from the steam regulator to the chamber 13 between the first inlet valve 12 and the second inlet valve 14 through the chamber steam regulating pipe 61 while the waste is accumulated on the first inlet valve 12 The pressure in the chamber 13 is increased to about 70 to 80% of the pressure inside the reactor 30. [ The second inlet valve 14 is then opened to introduce the organic waste into the reactor 30. Then, the second inlet valve 14 is closed. The organic wastes are introduced into the reactor 30 by repeating this process.

The pyrolysis of the organic waste in the reactor 30 proceeds by the pressure generated by the water vapor and the heat applied by the heating. In order to prevent the loss of pressure caused by the escape of water vapor during the injection process, the above-mentioned double valve method was selected. In case of pressure loss, it is possible to process in a small space by using a double valve because the process for expanding pressure is extended again. In addition, by increasing the temperature and pressure of the organic waste in advance through the steam injection, the heating time of the organic waste can be shortened.

The second pressure gauge 74 according to the embodiment of the present invention measures the pressure in the closed space 72. A closed space steam control pipe 63 is connected between the closed space 72 and the steam control unit 60 to discharge steam in the closed space 72.

The control unit 90 closes the second discharge valve 73 and discharges the steam in the closed space 72 after the first discharge valve 71 is opened to integrate the reactant into the closed space 72, And the second discharge valve 73 is opened to inject the reactant into the storage portion 80. [

That is, even when the waste is discharged after the reaction, it passes through the closed space 72 composed of two electric valves. When the reactant is accumulated on the first discharge valve 71 while the first discharge valve 71 and the second discharge valve 73 are locked, the first discharge valve 71 is opened to drop the reactant and the first discharge valve 71 To close the closed space (72). The steam in the closed space 72 is discharged through the steam regulator 60 and the closed space steam control pipe 63 to lower the pressure to the atmospheric pressure level and then the second discharge valve 73 is opened to discharge the reactant. This process is repeated and the reactant is discharged.

Since the pyrolysis of the reactor 30 is generated by the pressure generated by the steam and the heat introduced through the heating, by adopting such a double valve structure, it is possible to save the reaction time by recovering and recycling the steam .

The other end of the steam regulator 60 is provided with a steam discharge pipe to discharge the steam. The heat exchanger 120 may be used to absorb the heat of the steam discharged from the steam discharge pipe to produce hot water.

The discharged reactant is transferred to the pellet generating unit through the processing unit 110 or is finally treated.

Hereinafter, an operation method of the continuous thermal decomposition apparatus 100 according to an embodiment of the present invention will be described. First, the organic waste flows into the hopper 11 of the inflow section 10 by driving the supply pump 1 (S1).

The control unit 90 closes the first inlet valve 12 after opening the first inlet valve 12 to incorporate the organic waste into the chamber 13 (S2). Based on the measured value of the first pressure gauge 15, steam is supplied into the chamber 13 through the chamber steam control tube 61 to adjust the internal pressure of the chamber 13 to a value similar to the internal pressure of the reactor 30 (Specifically, 70 to 80%) (S3).

Then, the second inlet valve 14 is opened to introduce the organic waste into the reactor 30, and the second inlet valve 14 is closed (S4). This process is repeated to introduce the organic waste into the reactor 30 (S5).

The organic waste flows into the reactor 30 connected to the inlet 10 at the upper end and the helical screw 42 provided in each of the horizontal tubes of the zigzag body 41 is rotated by the motor 44 And is pyrolyzed while transporting the organic waste horizontally (S6).

In the pyrolysis step, the body 41 is in a zigzag form in which the horizontal tube and the vertical tube are alternately connected. The helical screw 42 is provided inside each of the horizontal tubes, and the helical screw 42 of the upper horizontal tube, And then horizontally moved by the vertical tube to the horizontal tube of the interruption and horizontally moved through the spiral screw 42 provided in the horizontal tube of the interruption to be pyrolyzed, And is horizontally moved and pyrolyzed through the helical screw 42 provided in the horizontal pipe at the lower end.

The heater 30 is heated by the heater 50 and the steam generated in the reactor 30 is discharged by the reactor steam control pipe 62 connected to the reactor 30. The steam generated by the steam regulator 60, The flow rate of the steam discharged from the reactor steam control pipe 62 is controlled by the control unit 60 to adjust the internal pressure of the reactor 30. [

That is, as mentioned above, the pressure sensor 46 measures the internal pressure of the reactor 30 in real time, and the controller 90 controls the steam controller 60 based on the value measured by the pressure sensor 46. [ Thereby maintaining the internal pressure of the reactor 30 at the set range.

The control unit 90 controls the heating unit 50 based on the measured value of the temperature sensor 45 to control the temperature of the reactor 30, So as to maintain the set temperature in the set range.

The control unit 90 controls the motor 44 to control the rotational speed of the spiral screw 42 to control the moving speed and the reaction speed of the organic waste.

The pyrolyzed reaction product is discharged to the storage part 80 through the discharge part 70 connected to the lower end of the reactor 30.

The control unit 90 opens the first discharge valve 71 to introduce the reactant into the sealed space 72. At this time, And the second discharge valve 73 is closed (S8).

The control unit 90 discharges the steam in the closed space 72 through the closed space steam control pipe 63 based on the value measured by the second pressure gauge 74 to lower the internal pressure to the vicinity of the atmospheric pressure ). Then, the second discharge valve 73 is opened to inject the reactant into the storage part 80, and the second discharge valve 73 is closed (S10). This process is repeated and the reactant is supplied to the storage unit 80 (S11).

It should be noted that the above-described apparatus and method are not limited to the configurations and methods of the embodiments described above, but the embodiments may be modified so that all or some of the embodiments are selectively combined .

1: Feed pump
10:
11: Hopper
12: first inlet valve
13: Chamber
14: second inlet valve
15: 1st pressure gauge
20: outer frame
30: Reactor
41: Body
42: Spiral screw
43:
44: Motor
45: Temperature sensor
46: Pressure sensor
50: Heating device
60: Steam conditioner
61: Chamber steam control tube
62: Reactor steam control tube
63: Closed-space steam control tube
70:
71: First discharge valve
72: Sealed space
73: Second discharge valve
74: Second manometer
80:
90:
100: Continuous thermal decomposition apparatus
110:
120: heat exchanger

Claims (19)

In the continuous pyrolysis apparatus,
An inlet through which the organic waste is introduced by the feed pump;
A zigzag shaped body having one end connected to the inlet and thermally decomposing organic wastes introduced into the interior, the horizontal tube and the vertical tube being alternately connected, a helical screw provided in each of the horizontal tubes, A reactor having a motor for horizontally conveying the organic waste; And
And a discharge unit connected to the other end of the reactor and discharging the pyrolytic reaction product.
The method according to claim 1,
In the inflow portion,
A first inlet valve for opening and closing the inlet, a second inlet valve spaced apart from the first inlet valve by a predetermined distance to open and close the inlet, and a chamber between the first inlet valve and the second inlet valve, Wherein the first and second heat exchangers are connected to each other.
3. The method of claim 2,
In the discharge portion,
A first discharge valve for opening and closing the discharge portion, a second discharge valve spaced apart from the first discharge valve by a predetermined distance to open and close the discharge portion, and an airtight space between the first discharge valve and the second discharge valve And a second heat exchanger for supplying heat to the second heat exchanger.
The method of claim 3,
Further comprising an outer frame having the built-in reactor and having a heat retaining function.
5. The method of claim 4,
Further comprising a sealing part for sealing the rotating shaft of the spiral screw and the reactor to seal the reactor.
6. The method of claim 5,
Further comprising a heater for heating the reactor. ≪ RTI ID = 0.0 > 11. < / RTI >
The method according to claim 6,
Further comprising: a reactor steam control pipe connected to the reactor for discharging steam generated in the reactor; and a steam controller for controlling a flow rate of steam discharged from the steam control pipe.
8. The method of claim 7,
A pressure sensor for measuring the internal pressure of the reactor in real time; And
Further comprising a controller for controlling the steam controller based on a value measured by the pressure sensor to maintain the internal pressure of the reactor within a predetermined range.
9. The method of claim 8,
Further comprising a temperature sensor for measuring the temperature of the reactor in real time,
Wherein the controller controls the heating device based on the value measured by the temperature sensor to maintain the temperature of the reactor at a predetermined range.
10. The method of claim 9,
Wherein the controller controls the rotational speed of the spiral screw by controlling the motor to control the moving speed and reaction speed of the organic waste.
11. The method of claim 10,
A first pressure gauge for measuring a pressure in the chamber; And
Further comprising: a chamber steam control pipe connecting the chamber and the steam controller to introduce steam into the chamber,
Wherein the control unit closes the first inlet valve by opening the first inlet valve and integrates the organic waste into the chamber, and supplies steam into the chamber to supply the internal pressure to 70 to 80% of the internal pressure of the reactor And the second inlet valve is opened to introduce the organic waste into the reactor.
12. The method of claim 11,
A second pressure gauge for measuring a pressure in the closed space; And
Further comprising a closed space steam control pipe connecting the closed space and the steam control unit to discharge steam in the closed space,
Wherein the control unit closes the second discharge valve after opening the first discharge valve to integrate the reactant into the closed space and discharges the steam in the closed space to lower the internal pressure to the vicinity of the atmospheric pressure, Is opened to introduce the reactant into the storage section.
13. The method of claim 12,
A steam discharge pipe provided at the other side of the steam regulator to discharge steam; And
And a heat exchanger for absorbing heat of steam discharged from the steam discharge pipe to produce hot water.
Introducing the organic waste into the inlet by driving the feed pump;
The organic waste flows into the reactor once connected to the inlet and the helical screw provided in each of the horizontal tubes of the zigzag body is rotationally driven by the motor to pyrolyze the organic waste while horizontally transporting the organic waste; And
And discharging the pyrolyzed reactant through a discharge unit connected to the other end of the reactor to the storage unit,
In the pyrolysis step,
The helical screw is horizontally moved through a spiral screw of a horizontal tube at the top of the horizontal tube, and is then passed through a vertical tube And is horizontally moved and pyrolyzed through a helical screw provided in the horizontal pipe at the lower end. The reactor is heated by a heating device, and the reactor is controlled by a reactor steam control tube connected to the reactor, And adjusting the flow rate of steam discharged from the steam control pipe by the steam controller to adjust the internal pressure of the reactor.
15. The method of claim 14,
In the pyrolysis step,
Measuring in real time the internal pressure of the reactor by a pressure sensor; And
Controlling the steam controller based on a value measured by the pressure sensor to maintain the internal pressure of the reactor at a predetermined range; ≪ / RTI > further comprising the steps of:
16. The method of claim 15,
In the pyrolysis step,
Measuring a temperature of the reactor in real time by a temperature sensor; And
Further comprising the step of controlling the heating device based on the value measured by the temperature sensor to maintain the temperature of the reactor at the predetermined range. ≪ Desc / Clms Page number 19 >
17. The method of claim 16,
In the pyrolysis step,
Further comprising the step of controlling the speed of the organic waste by controlling the rotation speed of the spiral screw by controlling the motor to control the moving speed and reaction speed of the organic waste.
18. The method of claim 17,
In the inflow step,
The control unit opens the first inlet valve to embed the organic waste into the chamber, closes the first inlet valve, and supplies steam into the chamber through the chamber steam control tube based on the measured value in the first pressure gauge, Increasing the pressure to 70-80% of the internal pressure of the reactor, opening the second inlet valve to introduce the organic waste into the reactor, and closing the second inlet valve, the organic waste is introduced into the reactor Wherein the process comprises the following steps:
19. The method of claim 18,
In the discharging step,
The control unit closes the second discharge valve after the first discharge valve is opened and the reactant is built in the closed space and the steam in the closed space is discharged through the closed space steam control pipe based on the measured value in the second pressure gauge And repeating the process of lowering the internal pressure to about atmospheric pressure and opening the second discharge valve to inject the reactant into the storage portion.

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